Method of producing a lens

Details Method of producing a lens Method of producing a lens

2008-09-30

2010-11-16

Harrington, Alicia M (Department: 2873)

Optical: systems and elements

Lens

Including a nonspherical surface

C359S620000

Reexamination Certificate

active

07835087

ABSTRACT:
A method of producing a lens that includes shifting a first die relative to a second die, and pressing an optical material shaped in a preliminary form between the first die and the second die so as to form a lens having a configuration corresponding to a hollow portion formed by the first die and the second die while shifting the first die relative to the second die. The produced lens includes an effective optical surface configured to converge a light flux. The effective optical surface includes a light entrance side, a light exit side, and an optical axis. The effective optical surface is a convex surface shaped such that when a maximum normal line angle is defined as an angle formed between the optical axis and a normal line at the outermost circumference of the effective optical surface, the maximum normal angle is 60° to 90°.

REFERENCES:
patent: 4868261 (1989-09-01), Kobayashi et al.
patent: 6650469 (2003-11-01), Kim et al.
patent: 6832495 (2004-12-01), Hosoe
patent: 2001/0005344 (2001-06-01), Nakano
patent: 2003/0048740 (2003-03-01), Nagoya et al.
patent: 2003/0072247 (2003-04-01), Hirai
patent: 2003/0102583 (2003-06-01), Hirota et al.
patent: 2004/0095875 (2004-05-01), Arai et al.
patent: 2004/0213134 (2004-10-01), Takada et al.
patent: 2007/0195263 (2007-08-01), Shimizu et al.
patent: 09-328319 (1997-12-01), None
patent: 2001-297471 (2001-10-01), None
patent: 2001-299711 (2001-10-01), None
patent: 2001-324673 (2001-11-01), None
patent: 2001-341134 (2001-12-01), None
patent: 2001-353729 (2001-12-01), None
patent: 2003-251650 (2003-09-01), None
patent: 2004-291607 (2004-10-01), None
Japanese Office Action (with English translation) dated Jan. 27, 2009 issued in the corresponding Japanese Patent Application No. 2002-373844.

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